$ git clone -n https://src.fedoraproject.org/rpms/rust-lexical-write-float.git /var/lib/mock/f45-build-42887-797/root/chroot_tmpdir/scmroot/rust-lexical-write-float
Cloning into '/var/lib/mock/f45-build-42887-797/root/chroot_tmpdir/scmroot/rust-lexical-write-float'...
$ git fetch origin 78b59e1f1e05e1d88dc7a3ad6cb10583db8faa8d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lexical-write-float
 * [new ref]         78b59e1f1e05e1d88dc7a3ad6cb10583db8faa8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 78b59e1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild